₦airaland Forum

Ms_Steph: do yo knw y the heart has 2 sides,y we have two feet,two legs,two hands? Cos 1 can't function without the other and am nothing without you only seeing ur name on nairaland completes my day nd makes me whole.. Love u my chocolate pie *muah*

sylvicherry: This is really not fair oo...the money we spent in getting the requirements ready is enough to even pay someone's school fees

estilo: I greet all the maths gurus in d house ooooo. Please have come again I want you guyz to assist me to solve some statistics questins.am a Mass comm student and I dnt knw anytin abt calcultn(olodo gurl)pls help ur sis oooo.

Q1(A) ND2 class has 20 boys and 16girls, three students are selected frm the class at random one after the other. Find the probability that:
(1) The first two are boys and the third is girl
(11) The first and third are boys while the second is a girl
(111) The first and third are of the same sex while the second is of opposite sex.
(B)Every saturday a fisherman goes to the river,the sea and a lake to catch fishes with probabilities 1/4,1/2,and 1/4 respectively. If he goes to the sea,there is an 80% chance of catching fish,the corresponding figures for the river and the lakes are 40% and 60% respectively. (1) find the probability that he catches fish on a given saturday
(11) If on a particular Saturday he comes home without catching anything,where is it most likely he has been?
(111) His friend who is also a fisherman chooses any of the three locations with equal probabilities. Find the probability that the two fishermen will meet atleast once in three weekends (any assumption made should be clearly stated).



Q2(A) fit a regression Y= a+bx by the method of least square to the following sample information

Income '000:-41,65,50,57,96,94,110,30,79,65
Consumption/expenditure '000:-44,60,39,51,80,68,84,34,55,48
Find the level of income if consumption expenditure is 90.

(B)frm the two sets of numbers below which one is more widely dispersed.
A: 2,3,1,4,5,6,7,25,9,8
B: 32,45,40,38,47,50,43,36,44,35

Tenks

achukwunet: Watch and enjoy!!

https://www.facebook.com/video/embed?video_id=623005460638%22%20width=%22180%22%20height=%22318%22%20frameborder=%220

Florena: u must ave been sufferin 4rm a mental disorder, or u just can't get it 2 ur thick skull wat I typed.......I said tiwa savage is beautiful, u said dey just discharged u 4rm hospital......
EGBAMI!!!

Florena: I love dis girl so much!!!
U re beautiful!
U re beautiful!!
Its true....

nur2tj: Am a student of uniport too studying geology. Please when did they bring the letter because i have not heard of anything.

librangyps: Really? Please elaborate, u mean fsb hav contacted ur school? Omg! They shud contact my sch too o. What school are u in? I'm a student of Lagos State Uni. Pls update